What does sprintf stand for?

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情书的邮戳
情书的邮戳 2021-02-04 00:34

I tried looking it up on google and wikipedia but couldn\'t find an answer... Does anyone know what \'sprintf\' or \'printf\' stands for? Is it an abbreviation for something???<

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  •  渐次进展
    2021-02-04 00:58

    The various members of the printf family, derived from C where they first appeared (though they hark back to the olden days of BCPL's writef call along that particular lineage), include:

    printf    - print formatted (to standard output).
    fprintf   - file printf (to a file handle).
    sprintf   - string printf (to a string).
    snprintf  - sprintf with added overflow protection.
    

    In addition, there are variants of those starting with v (as in vsnprintf) which can take variable arguments like printf itself.

    By that I mean that they pass around a varargs argument rather than a series of arguments, allowing you to write your own printf-like function. I've used this before when developing logging libraries in the past.

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